Structure of reflective display panel

Abstract

A structure of a reflective display panel including a silicon substrate, a liquid crystal layer and a stacked compensation film layer is provided. The liquid crystal layer disposed on the silicon substrate has a first phase retardation which is within a first retardation range. The stacked compensation film layer disposed on the liquid crystal layer has a second phase retardation which is within a second retardation range. The stacked compensation film layer is selected according to an optical characteristic of the liquid crystal layer so as to increase a contrast of the reflective display panel.

1 . A structure of a reflective display panel, comprising:
 a silicon substrate;   a liquid crystal layer disposed on the silicon substrate and having a first phase retardation, wherein the first phase retardation is within a first retardation range; and   a stacked compensation film layer disposed on the liquid crystal layer, and having a second phase retardation, wherein the second phase retardation is within a second retardation range, and the stacked compensation film layer is selected according to an optical characteristic of the liquid crystal layer so as to increase a contrast of the reflective display panel.   
     
     
         2 . The structure of the reflective display panel as claimed in  claim 1 , wherein the liquid crystal layer has a beta angle, and the beta angle is between −10 degrees and −8 degrees relative to a direction axis. 
     
     
         3 . The structure of the reflective display panel as claimed in  claim 2 , wherein the liquid crystal layer has a twist angle, and the twist angle is between 72 degrees and 76 degrees relative to the beta angle. 
     
     
         4 . The structure of the reflective display panel as claimed in  claim 3 , wherein the first retardation range is between 200 nm and 210 nm. 
     
     
         5 . The structure of the reflective display panel as claimed in  claim 1 , wherein the stacked compensation film layer comprises:
 a first compensation film, having a first slow axis, and an angle of the first slow axis relative to a direction axis being within a first range; and   a second compensation film having a second slow axis, and an angle of the second slow axis relative to the direction axis is within a second range.   
     
     
         6 . The structure of the reflective display panel as claimed in  claim 5 , wherein the first range is between 0 degree and 30 degrees, and the second range is between 90 degrees and 120 degrees. 
     
     
         7 . The structure of the reflective display panel as claimed in  claim 6 , wherein the second retardation range is between 25 nm and 140 nm. 
     
     
         8 . The structure of the reflective display panel as claimed in  claim 1 , wherein the sacked compensation film layer comprises a black matrix. 
     
     
         9 . The structure of the reflective display panel as claimed in  claim 1 , further comprising a first alignment layer and a second alignment layer, wherein the liquid crystal layer is disposed between the first alignment layer and the second alignment layer. 
     
     
         10 . The structure of the reflective display panel as claimed in  claim 1 , further comprising a top transparent substrate and a bottom transparent substrate, wherein the stacked compensation film layer is disposed between the top transparent substrate and the bottom transparent substrate. 
     
     
         11 . The structure of the reflective display panel as claimed in  claim 10 , wherein the top transparent substrate comprises a black matrix. 
     
     
         12 . The structure of the reflective display panel as claimed in  claim 10 , further comprising an optical glue disposed between the top transparent substrate and the stacked compensation film layer and between the bottom transparent substrate and the stacked compensation film layer. 
     
     
         13 . The structure of the reflective display panel as claimed in  claim 1 , further comprising a transparent electrode layer disposed between the liquid crystal layer and the stacked compensation film layer. 
     
     
         14 . The structure of the reflective display panel as claimed in  claim 1 , further comprising an anti-reflection layer disposed on the stacked compensation film layer. 
     
     
         15 . The structure of the reflective display panel as claimed in  claim 1 , wherein the reflective display panel is a liquid-crystal-on-silicon panel (LCoS panel).